wk4 quiz

Question 1
Which Python keyword indicates the start of a function definition?
help
rad
break
def

Answer: def

Question 2
In Python, how do you indicate the end of the block of code that makes up the function?
You put a # character at the end of the last line of the function
You de-indent a line of code to the same indent level as the def keyword
You add a line that has at least 10 dashes
You put the colon character (:) in the first column of a line

Answer: You de-indent a line of code to the same indent level as the def keyword

Question 3
In Python what is the raw_input() feature best described as?
A conditional statement
A data structure that can hold multiple values using strings as keys
A built-in function
A reserved word

Answer:A built-in function

What does the following code print out?
def thing():
    print 'Hello'
 
print 'There'
thing
Hello
There
There
Hello
def
thing

Answer: There

Question 5
In the following Python code, which of the following is an "argument" to a function?
x = 'banana'
y = max(x)
print y
print x
y
x
print
max


Answer: x


What will the following Python code print out?
def func(x) :
    print x

func(10)
func(20)
10
20
x
10
x
20
 x
x
 func
func

Answer: 10 20

Question 7
Which line of the following Python program is useless?
def stuff():
    print 'Hello'
    return
    print 'World'

stuff()
print 'Hello'
def stuff():
stuff()
print 'World'
return

Answer: print "World"


Question 8
What will the following Python program print out?
def greet(lang):
    if lang == 'es':
        return 'Hola'
    elif lang == 'fr':
        return 'Bonjour'
    else:
        return 'Hello'
 
print greet('fr'),'Michael'
Bonjour Michael
Hello Michael
def Michael
Hola
Bonjour
Hello
Michael

Answer: Bonjour Michaels


Question 9
What does the following Python code print out? (Note that this is a bit of a trick question and the code has what many would consider to be a flaw/bug - so read carefully).
def addtwo(a, b):
    added = a + b
    return a

x = addtwo(2, 7)
print x
addtwo
2
9
Traceback

Answer: 2

Question 10
What is the most important benefit of writing your own functions?
To avoid having more than 10 lines of sequential code without an indent or de-indent
Following the rule that whenever a program is more than 10 lines you must use a function
Following the rule that no function can have more than 10 statements in it
Avoiding writing the same non-trivial code more than once in your program

Answer: Avoiding writing the same non-trivial code more than once in your program